The brief answer is that the tables and registration are both $75 for members at the door.
The rates are substantially lower for non-members to try to attract new members. Here is the blurb on the New Member Show Special
1st: We are all set up for CREDIT CARDS!!! Credit cards will be accepted at Registration!!
2nd: This is only a Saturday & Sunday offer for NEW FIRST TIME MEMBERS only. They will receive all NAWCC benefits for one year and entrance into the convention and the mart for $95.00 (all lectures, programs, the auction, and Annual Meeting Continental Breakfast). The new member will receive the Watch & Clock Bulletin and the MART magazines 6 times a year also will have full access to the website. Plus they will also be able to use their membership card to get into any of the ASTC ~ Association of Science and Technology Centers at little or no cost. (Check out the ASTC PASSPORT PROGRAM). Or if you would like a 4 month membership, you pay $75.00 to join NAWCC & this also pays for your Mart entrance & 4 month membership. You get all the benefits of the above 1 year membership, but, yours will only be for 4 months TRIAL membership. At the same time you can bring Family member or Friend for $25.00 each all under your new NAWCC membership.